import React, {Component} from 'react';
import {StyleSheet, Text, Image, View, Alert, ActivityIndicator, FlatList, RefreshControl} from 'react-native';
import {ScrollView} from 'react-native-gesture-handler';
import {List, Flex, WingBlank} from '@ant-design/react-native';
import Item from '@ant-design/react-native/lib/list/ListItem';
import {getParkingFavoriteList} from '~/api/parking';

import ScCard from '~/components/sc-card';
import ZsCard from '~/components/zs-card';
import Developpark from '~/components/developpark';
let pagecount = 0;
let index = 1;
let size = 10;
class MyCollection extends Component {
    static navigationOptions = ({navigation}) => {
        let title = '';
        if (navigation.state.params != null) {
            title = '收藏量';
        } else {
            title = '我的收藏';
        }
        return {
            title: title,
        };
    };
    constructor(props) {
        super(props);
        this.state = {
            list: [],
            page_index: 1,
            page_size: 10,
            isLoading: false, //加载
            refreshing: false,
            footer: 0, //上拉底部显示
            RegUserID: this.props.navigation.getParam('userid') || 0,
            companyBuildingID: this.props.navigation.getParam('companyBuildingID') || 0,
        };

        this.getfavoritelist();
    }
    getfavoritelist() {
        getParkingFavoriteList({
            page_index: this.state.page_index,
            page_size: this.state.page_size,
            condidate: {
                RegUserID: this.state.RegUserID,
                CompanyBuildingID: this.state.companyBuildingID,
            },
        }).then((r) => {
            if (r.code === 0) {
                this.setState({
                    list: r.data.list,
                    footer: 0,
                });
                if (this.state.page_index === 1) {
                    pagecount = r.data.total_page_count;
                    this.setState({
                        footer: r.data.total_item_count < 10 ? 2 : 0,
                    });
                }
                // Alert.alert('成功');
            } else {
                Alert.alert('失败');
            }
        });
    }
    _onRefresh() {
        this.setState({footer: 0, page_index: index, page_size: size}, () => {
            this.getfavoritelist();
        });
    }
    //上拉加载更多
    loadData = () => {
        this.setState({isLoading: false});
        let dataArray = [];
        if (pagecount - 1 > 0) {
            pagecount = pagecount - 1;
            this.setState(
                {
                    page_index: this.state.page_index + 1,
                    footer: 1,
                },
                () => {
                    getParkingFavoriteList({
                        page_index: this.state.page_index,
                        page_size: this.state.page_size,
                        condidate: {
                            RegUserID: this.state.RegUserID,
                            CompanyBuildingID: this.state.companyBuildingID,
                        },
                    }).then((r) => {
                        if (r.code === 0) {
                            dataArray = r.data.list;
                            dataArray = this.state.list.concat(dataArray);
                            this.setState({
                                list: dataArray,
                                isLoading: false,
                            });
                            // Alert.alert('成功');
                        } else {
                            Alert.alert('失败');
                        }
                    });
                },
            );
        } else {
            this.setState({
                footer: 2,
            });
        }
    };

    //上拉底部显示
    genIndicator() {
        if (this.state.footer === 1) {
            return (
                <View style={styles.indicatorContainer}>
                    <ActivityIndicator style={styles.indicator} size={'large'} animating={true} />
                    <Text style={{textAlign: 'center'}}>正在加载更多</Text>
                </View>
            );
        } else if (this.state.footer === 2) {
            return (
                <View
                    style={{
                        height: 30,
                        alignItems: 'center',
                        justifyContent: 'flex-start',
                    }}>
                    <Text
                        style={{
                            color: '#999999',
                            fontSize: 14,
                            marginTop: 5,
                            marginBottom: 5,
                        }}>
                        没有更多数据了
                    </Text>
                </View>
            );
        } else if (this.state.footer === 0) {
            return (
                <View
                    style={{
                        height: 30,
                        alignItems: 'center',
                        justifyContent: 'flex-start',
                    }}>
                    <Text
                        style={{
                            color: '#999999',
                            fontSize: 14,
                            marginTop: 5,
                            marginBottom: 5,
                        }}>
                        上拉加载更多
                    </Text>
                </View>
            );
        }
    }
    _renderItem(item) {
        return (
            <WingBlank>
                <Flex
                    onPress={() => {
                        this.props.navigation.push('ParkInfo', {
                            parkingid: item.ParkingDataID,
                        });
                    }}>
                    <ScCard item={item} key={index} />
                </Flex>
            </WingBlank>
        );
    }
    render() {
        return (
            <FlatList
                data={this.state.list}
                showsVerticalScrollIndicator={false}
                renderItem={(data) => this._renderItem(data.item)}
                keyExtractor={(item, index) => index}
                ListFooterComponent={() => this.genIndicator()} //上拉加载更多视图
                onEndReached={() => {
                    this.loadData();
                }}
                onEndReachedThreshold={0.1} // 这个属性的意思是 当滑动到距离列表内容底部不足 0.1*列表内容高度时触发onEndReached函数 为啥要加这个属性 因为不加的话滑动一点点就会立即触发onReached函数，看不到菊花加载中
                refreshing={true}
                refreshControl={
                    <RefreshControl
                        refreshing={this.state.refreshing}
                        onRefresh={() => {
                            this._onRefresh();
                        }}
                    />
                }
            />
        );
    }
}

export default MyCollection;

const styles = StyleSheet.create({});
